Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 277: | \[{16^{277}-1\over15}\] | 1109 × 232681 × 1121297 × 98002601 × 1093620377 × 4343215646437<13> × 25792643401363<14> × 365883785511434081<18> × 987879984327104437<18> × 6127581899703807800001946665349<31> × 31133636305610209482201109050392404721<38> × 6955979459776540052280934851589652278783<40> × 44330544153812472562387530302993597418712010163095512613990869<62> × 3138280009399679017344631051542622769205877134953845128202334345822857<70> |